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metanephrines in the 24-hour urine

Name metanephrines in the 24-hour urine
Specimen requirements 10 ml of 24-hour urine, acidified
Methodology HPLC (high-performance liquid chromatography)
Reference ranges Metanephrine: < 1620 nmol / 24 h
Normetanephrine: < 2130 nmol / 24 h
Diagnostic recommendation screening of pheochromocytoma, neuroblastoma, hypertension